Captain Cook, HI Radon Levels

Q: What EPA Radon Zone is Captain Cook in?

Captain Cook is in Hawaii County, EPA Zone 3.

Q: How much does radon mitigation cost in Captain Cook?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Captain Cook radon levels and find certified testing and mitigation professionals to keep your home safe

Captain Cook, HI Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Hawaii County, HI

Zip Code 96704

Perched on the slopes of Mauna Loa in Hawaii County, Captain Cook sits on volcanic rock formations characteristic of the Big Island. Radon testing data for the 96704 zip code is currently limited. Hawaii's volcanic geology typically produces lower radon levels than mainland formations, but individual testing remains the only reliable method to determine actual readings in any home.

Captain Cook, HI Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Need Radon Mitigation or Testing in Captain Cook?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Hawaii County Pros

1-800-299-3578 Toll-free · Mon–Fri 8am–6pm ET

Radon FAQ for Captain Cook, HI

What EPA Radon Zone is Captain Cook in?

Captain Cook and the 96704 zip code are in Hawaii County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Captain Cook?

Radon mitigation in Captain Cook typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Captain Cook?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Hawaii

Cities in Hawaii with the most user-submitted radon test data, ranked by number of submissions.

City	Avg User Radon Level	Submissions
Honolulu	No submissions	0